Search (3 results, page 1 of 1)

  • × theme_ss:"Computerlinguistik"
  • × theme_ss:"Konzeption und Anwendung des Prinzips Thesaurus"
  • × year_i:[2000 TO 2010}
  1. Schneider, J.W.; Borlund, P.: ¬A bibliometric-based semiautomatic approach to identification of candidate thesaurus terms : parsing and filtering of noun phrases from citation contexts (2005) 0.01 
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    Date
    8. 3.2007 19:55:22
    Pages
    S.226-237
  2. Tseng, Y.-H.: Automatic thesaurus generation for Chinese documents (2002) 0.01 
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    Abstract
    Tseng constructs a word co-occurrence based thesaurus by means of the automatic analysis of Chinese text. Words are identified by a longest dictionary match supplemented by a key word extraction algorithm that merges back nearby tokens and accepts shorter strings of characters if they occur more often than the longest string. Single character auxiliary words are a major source of error but this can be greatly reduced with the use of a 70-character 2680 word stop list. Extracted terms with their associate document weights are sorted by decreasing frequency and the top of this list is associated using a Dice coefficient modified to account for longer documents on the weights of term pairs. Co-occurrence is not in the document as a whole but in paragraph or sentence size sections in order to reduce computation time. A window of 29 characters or 11 words was found to be sufficient. A thesaurus was produced from 25,230 Chinese news articles and judges asked to review the top 50 terms associated with each of 30 single word query terms. They determined 69% to be relevant.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1130-1138
  3. Pimenov, E.N.: Normativnost' i nekotorye problem razrabotki tezauruzov i drugikh lingvistiicheskikh sredstv IPS (2000) 0.00 
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    Source
    Nauchno- Tekhnicheskaya Informatsiya; Series 1. 2000, no.5, S.7-16

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